Mechanical stoker



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sscti -55 thereof or the scope of the appended claims. gears meshingwith' said first mentioned tive lever arms resulting in'a smallermovebetween said piston and rocking-bar comment of the grate-bars for agiven moveprising an oscillating lever, means for varyment of the piston17. By adjusting the .ing the ei'ective length of said lever, andlengths of the links 26 by the turn-buckle meansfor adjusting the'connecting-means a 27, the other connections remaining the between midrocking-,barandpiston so as to 65 same, the angular position of therockingchange the angular position o said rockingbars can be varied soas to change the bar in relation-to any given position of thel positionof the inner ends 6 of the movable piston. grate-bars ivithmeference tothe side walls 2. The combination .of a rocking-bar, lo 2 of the retortfor any given position of the grate-bars actuated thereby, a piston-rod70 piston-rod 18, a shortening of the links reand cylinder therefor eachhaving its axis sulting in drawing the grate-bars 4 inward. parallel tosaid rocking bir and locatedvin The construction shown with its adjustaplane below said rocking-bar, a gear upon able features not only permitsof the adsaid rocking-bar, a gear meshing with said justment of thelength of the throw of the 4first mentioned gear, a lever connected to75 grate-bars 4 arid of their'positions for any said second gear andextending downwardly given position of the piston 18, but results towardthe horizontal plane passing through in bringing the thrust upon Ithepiston-rod said cylinder and connected to said piston- 18 in operatinthe rooki -bars 10 into a rod. l v I, v I 20 plane lying wel below theeed plate 3 and 3. The combination of a rocking-bar, se' approaching theplane of the axis of the pisgrate-bars actuated thereby, a "piston-rodton-rod 18. Sincethe lever arms depend and cylinder therefor eachhaving. its axis downwardly in planes located upon the two parallel tosaid rocking bar and located sides of the piston-rod 18 andthe links in'a plane =below said rocking-bar, aA gear 25 26 lie in a plane well belowthe feed plate upon said rocking-bar, a gear meshing with 85 andapproaching the axis of the piston-rod said first mentioned gear theaxes of said I 19, the individual thrusts upon the pistongears being atright angles, a lever conrod 18 resulting from the operation of thenected to said secondv gear and extending individual crank arms 25 aresubstantially downwardly toward the horizontal plane balanced andproduce a resultant thrust passing through said cylinder,` and a link 90which is in a line approximating'.v the axis of connecting said leverand piston-rod and the piston-rod 18'.v The invention thereforeadjustable so as'to vary the effective lever provides fortheadjustmentsA above referred arm of said lever.

to and eliminates to a large *exwn't objec- 4. The combination of arocking-bar, ltionable side thrusts upon the pist'oi-rod 18 grate-barsactuated thereby, a piston-rod 95 ,and its bearings in the cylinderhead. and cylinder therefor each having its axis In operating the devicethe piston 17 is parallel to said rocking bar and located caused toreciprocate by admitting and disin a plane below said rocking-bar, agear charging a supply of suitable fluid, thereby upon said rocking-bar,a gear meshing with 40` causing the reciprocation oflthe feed plate.lsaid irst mentioned gear the axes of said 113e 3 and 1at the same timethe rocking of the gears being at right angles,F a lever concrank arms25 and gear 24, which results in nected to said second gear andextending the oscillation of the rocking-bars 10 and downwardly towardthe horizontal plane the longitudinal reciprocation of the movpassingthrough said cylinder, and a linlr able grate-bars 4, such movements ofthe connecting said lever and piston-rod, said las rate-bars resultinginthe movin of fuel linkb'eing adjustable in length. in the mannerdescribed in vVoo- Patent. 5. In a mechanical Stoker, the combina- No.818,010, above referred to, and at the tion of a` retort, areciprocating feed plate same time fuel is supplied through thehoptherein, rocking-bars onI `the two sides of .per 1 and the retortchamberbythe move said retort, a .piston-rod and cylinder 'each 11@ mentof the feed slide 3. having its axis parallel to said rocking bars. ,Aswill be 'evident to those skilledin the and located below said retortand feed art, my invention ermite of various. modiplate, a connectionbetween said piston-rod ications without eparting from the spirit andplate, gears upon said rocking-bars,

`WhatI claim-is: gears and provided with depending lever 1. Thecombination of la rocking-bai', arms, and means located below said feed'grate-bars actuated thereby, a piston and a plate and connecting saidlever arms to said cylinder therefor each having its axis parpiston-rod.

Go allel to said rocking bar, connecting means JUDSUN E. "WAGGNER,

